To use .populate() in Mongoose to select specific fields, you can pass an object of options as the second argument to the .populate() method. This object should have a 'select' key set to a space-separated list of the fields you want to select.
For example:
User.findOne({ name: 'John' })
.populate({
path: 'posts',
select: 'title date'
})
.exec(function(err, user) {
if (err) throw err;
console.log(user.posts);
});
In this example, we are selecting only the 'title' and 'date' fields from the 'posts' collection while populating it.
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Asked: 2021-08-31 11:00:00 +0000
Seen: 10 times
Last updated: Jul 23 '22
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